Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 3 - 50 m (Ref. 90102), usually - m (Ref. ). Subtropical; 0°C -
Western Pacific: Japan and Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 48637)
Morphology | Morphometrics
soft rays: 7 - 8. Characterized by having semi-transparent body with dusky stripe on side of snout; presence of broad reddish brown stripe from rear eye to dorsal surface of abdomen and along ventral body to caudal fin base; pectoral rays unbranched and not thickened; longitudinal scale series 33-41; shallow cup, pelvic disc; opening of gill usually reaching to below middle or rear half of eye (Ref. 90102).
Occurs on lagoon reefs and hovers upside-down among thickets of the staghorn coral Acropora formosa (Ref. 37816, 48637). Often seen resting on underside of coral branches and makes short forays into water column to feed on planktons (Ref 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition II. Tokai University Press, Japan, pp 867-1749. (Ref. 43239)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.1 - 28.9, mean 27.8 °C (based on 300 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00332 - 0.01511), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Nutrients (Ref. 124155
): Calcium = 272 [100, 749] mg/100g ; Iron = 1.69 [0.80, 3.84] mg/100g ; Protein = 18.5 [16.5, 20.4] % ; Omega3 = 0.204 [0.084, 0.507] g/100g ; Selenium = 9.49 [3.29, 26.66] μg/100g ; VitaminA = 114 [24, 528] μg/100g ; Zinc = 2.26 [1.18, 4.31] mg/100g (wet weight);